University of Pennsylvania Team Demonstrates On-Chip Photonic Quantum Skyrmion Transfer in Nature Physics

A University of Pennsylvania-led team has successfully demonstrated the on-chip transfer of photonic quantum skyrmions, topological light structures, from single photons to entangled states. This was achieved using integrated nanophotonic chips and established a noise-resilient quantum state transfer mechanism. The research, published in Nature Physics, shows that the skyrmion number, a robust quantum observable, remains intact even when entanglement vanishes, offering a new approach for noise-t